LM Byg A/S is a Danish-owned construction company specializing in concrete and raw house contracts as well as general and turnkey contracts. LM Byg is among the leaders in Denmark in the field of raw house construction, and with its large in-house production unit, LM Byg can carry out all kinds of projects in the field of raw house construction, including cast-in-place concrete structures, assembly of concrete elements, wooden structures and steel structures. LM Byg was founded in 1987 and employs over 300 white-collar workers and specialized concrete workers. Today, LM Byg is part of the Pihl Group together with the sister companies Pihl & Søn A/S and BNS A/S. This constellation enables consortium collaboration across the group.
The work on the projects
Kaktustårnene ("The Cactus Towers") are centrally located in Copenhagen at Kalvebod Brygge close to Dybbølsbro, directly opposite Fisketorvet Shopping Center. The construction of the cactus towers consists of independent building sections: Tower A, Tower B as well as a 'base' with a green area containing cultural areas and a café area. When completed, the building will contain a total of 495 homes. The name Kaktustårnene has been given to the project because of its characteristic facade expression – the entire project was designed by the renowned architectural firm BIG.
Assembling required a unique solution
Out on the construction site, we meet Nikolai Ladegaard, Production Manager at LM Byg - who has worked with the construction of the Cactus Towers for more than a year and a half; he tells; "Part of the project's base is located under one tower, and here two columns had to be mounted in conjunction with the other tower; and it requires the right solution when a column with a net weight of up to 13.3 tonnes is to be placed. He continues "The challenge that the team from LM Byg faced was that the column had to be placed with a tolerance of just 5 centimetres, at the same time that it also had to be shifted sideways by around 1 meter from the crane's possible working area." he explains.
The problem was only with two of the columns that had to be installed, and LM Byg therefore only needed one solution during these lifts. Nikolai Ladegaard was therefore looking for the right solution among the company's business partners. He says with a smile, "And here it's nice to have a business partner like Fyns Kran Udstyr at hand."
Cooperation
When the unique solution had to be constructed, sales consultant Frank Nørlem was able to quickly advise on the various options, as Fyns Kran Udstyr has previously helped with lifting equipment for a similar lift with the same problem that Nikolai Ladegaard from LM Byg faced.
Frank was able to use on Fyns Kran Udstyr's rental branch and procure the right lifting beam for the lift, so that LM Byg thus got the right equipment to solve their task, without them having to invest in the lifting beam itself for the solution.
The lifting beam that was used has a lifting capacity (WLL) of 15 tonnes and the lifting beam is equipped with both an extendable arm that can provide the decisive meter and a series of counterweights to create the correct weight distribution during a lift.
Frank explains; "In addition to advice, our technical department has been in charge of the task to both calculate and at the same time design a unique lifting bracket for the lifting beam. This was partly to be able to cut the column correctly at the same time that it could place the columns within the tight tolerances that they had for the existing tower", explains Frank enthusiastically.
Safety – the most important element
During such a large project, the main theme is of course safety, in everything that is worked on in connection with the construction. In addition to finding the right solutions for the right challenges, safety is a theme that is brought into play in all situations. Nikolai tells; "This summer, our crew here on the construction site at Kaktustårnene attended, among other things, on the course 'Safe Rigging', which was held by Fyns Kran Udstyr, and it was really good and educational and it was very well received by our people, while at the same time it helps to create a focus on safety in and around the work on the construction project", concludes a satisfied Nikolai. Construction of the Cactus Towers started in 2019 and is expected to be completed in 2022.
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